A view from the starting line of the sixth annual Krispy Kreme Challenge in Raleigh, N.C., in 2010. The local children's health clinic takes its name from this annual charity race, which draws about 8,000 participants each year. Courtesy of Dustin Bates hide caption

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Logan Kovach, 6, Matthew Kovach, 2, and Allyson Kovach, 5, eat a lunch distributed by the YMCA in Hopkins County, Kentucky. Pam Fessler/NPR hide caption

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Playing outside can help kids — and their parents — maintain a healthy weight. iStockphoto hide caption

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Advocates for healthy food in Virginia schools have met a reversal, after cafeterias changed back to hamburgers with additives due to students' complaints. The schools had been serving all-beef burgers such as these, being grilled at a farmer's market. Paul J. Richards/AFP/Getty Images hide caption

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Renande Raphael, aged 16 months, is measured to check whether she is growing normally. She's part of a trial in Haiti to see if an extra daily snack of enriched peanut butter prevents stunting and malnutrition. Alex E. Proimos/via flickr hide caption

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The new nutrition standards will replace school lunch dishes like pizza sticks with salad. iStockphoto.com hide caption

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